Furnace



Dec. 18, 1928.

1,696,067 J. w. WESTWICK, SR

FURNACE Filed April 18, 1927 4' "Illllll 6'0 7 2'9 7 l :2 v21 9 J1 INVENTOR.

A TTORNEY. V

Dec. 18,1928.

Filed April 18, 192';

2 Sheets-Sheet 2 1 Z a a! J a6 1 a Q 26 a1 eg I a 26' if 4-1 E 16 Q1 1 1 I I l 11 i '25 l A i INVENTOR. 067m 14!: MQSTWILQKI Sr, BY

A TTORNE Y.

PATENT OFFICE.

JOHN WILLIAM WESTWIGK, SR, OF GALENA, ILLINOIS.

FURNACE.

Application filed April 18, 1927. Serial No. 184,648.

This invention relates to warm air furnaces and has for its object to provide, in a manner as hereinafter set forth, means for conveniently and expeditiously shaking down the furnace when occasion requires.

A further object of the invention is to provide, in a manner as hereinafter set forth, a warm air furnace provided with a shaking mechanism capable of being operated from one side of the ash pit or at the front thereof.

A further object of the invention is to provide, in a manner as hereinafter set forth, a shaking device for the purpose referred to including a lever operated reciprocatory connecting bar and an extended ash pit associated with the shaking device, and with the bar of said device disposed transversely of and projecting from one side of the extension of the pit and detachably connected to the operating lever for the device,

and further with said side providing a guide and bearing for the bar when reciprocated by the lever.

A further object of the invention is to rovide, in a ,manner as hereinafter set forth, a furnace including an extended ash pit and a slip-on front and with the sides and top of the extension of the p1t provlded with means to constitute an abutment for said slip-011 front, when the latter is mounted in osition, to prevent the front from slnftlng orwardly with respect to the extension of the pit.

A further object of the inventlon 1s to rovide, in a manner as hereinafter set orth, a furnace rovided with an extended ash pit and furt er with a shaking means or device arranged within the pit and further with an upstanding lever arranged in s aced relation with respect to one side of t e pit and connected with said shaking means for operating the latter when required.

Further objects of the invention are to provide, in a manner as hereinafter set forth a shaking means for a furnace or for other purposes for which it is adaptable, Wl'llCh 1s simple in its constructlon and arrangement, strong, durable, compact, thoroughly eflicient in its use, 0 erated from its side or at its front, readily lnstalled within the furnace and comparatively inexpensive to set up.

With the foregoing and other objects in View the invention consists of the novel construction, combination and arrangement of parts as hereinafter more speci cally described, and illustrated in the accompanying drawings wherein 1s shown an embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which fall within the scope of the claim hereunto appended.

In the drawings wherein like reference characters denote corresponding parts throughout the several views:

Figure l is fragmentary View, in front elevation illustrating the slip-on front, extended ash pit and shaking means in accordance with this invention and with the ash pit door removed.

Figure 2 is a sectional plan illustrating the grate bars, shaking means, slip-on front, extended ash pit, ash pit door and operating lever for the shaking means, the outer shell being removed.

Figure 3 is a section on line 3-3 Figure 2.

Figure 4 is a fragmentary view in side elevation of the furnace.

Figure 5 is a detail in vertical section.

As is well known, warm air furnaces include outer and inner shells arranged in spaced relation to provide an air heating 0 amber surrounding the inner shell. The air heating chamber is provided with cool air supply means and warm air outlet means. In the embodiment of the invention forming the subject matter of this a plication, the outer shell is indicated at 1, t e air heating chamber at V2 and the inner shell at 3 and .with the latter extended above the means,

hereinafter referred to provide the ash, pit of the furnace. The inner shell 3 is formed with an opening 3 for the reception of a water pan. y

In the embodiment of the invention as disclosed in the application the shell 1 has the lower portion of its front cut away and which is closed by a slip-0n front section 4, provided with an opening 5 which regis-v ters with the opening 3. The water pan is not shown. j

The furnace includes a base member 6 of angle shaped cross section forming a vertically disposed flange 7. The outer shell 1 is seated on a base member. 6 and overlaps the flange 7. The base member 6 at its front is providedwith a pair of in-' Wardly extending portions 8, 9 which merge into a plate 10, which is disposed centrally with respect to the base member 6 and projects inwardly and outwardly with respect to the inturned portions 8, 9 of the base member 6. The plate 10 has a rounded inner end and a squared forward end. That part of the plate 10 arranged outwardly with respect to the inturned portions 8, 9 is of greater width than that portion of the plate 10 which extends inwardly from said portions. That part of the plate 10 which extends inwardly from said portions 8, 9 is of materially greater length than the part of the plate 10 which projects outwardly from said portions. The

)late' 10 is formed with an upstanding huge 11 which extends from that part of the flange 7 formed on the port on 8 to that part of the flange 7 formed on the portion 9. The flange 11 from one end to the other end thereof is continuous and forms the upper face of the plate 10 with aseat 12. The plate 10 has its upper face, in proximity to its outer end. formed with a transversely extending abutment 13.

Mounted on the seat 12 and extending beyond the portions 8, 9 of the base member 6 is an upstanding casting 14: formed with an open front and having its top, at the outer portion thereof, closed by a flat bridge piece 15 which forms the bottom wall of the opening 3. The width of the bridge piece 15 is less than half the length of the casting 14 and the latter is arranged below the inner shell 3 see Figure 3. The casting 14 from the rear edge of the bridge piece 15 to the rear end thereof open.

The ash pit 16 is formed by the plate 10 and casting 1% and the latter provides the rear wall 17 and side walls 18. 19 of the ash nit. The plate 10 provides the bottom 0 the ash pit. The ash pit door is indicated at 20 and is hinged as at 21 to the side wall 19 of the ash pit 16. The door 20 and side wall 18 of the ash pit are provided with coacting means, as indieated at 22 for latching the door 20 in abutting relation with respect to the "outer edge of the bridge piece or member 15 and the outer edges of the walls 18, 19. The door 20 when closed is positioned against the abutment 13 and said door 20 is provided throughout with an inwardly extending flange or rim 23 which positions the body of the door a substantial distance from the castin 14, as the flange or rim 23, when the door is closed abuts against the casting. The construction and arrangement of the casting M in connection with the door 20, provides an ash pit 16 which is extended from the front 41 of the furnace, see Figure 8. The body of the door 20 is formed with a pair of openings 24- for a purpose to be presently referred to and which are normally closed by the pivoted closures 25.

The walls 18, 19 of the the box and the bridge piece 15 are flanged on the outerfaces thereof and the flange is indicated at 26 and extends from the lower end of the wall 18 to the lower end of the wall 19 and across the bridge piece 15 and provides an abutment. The flange 26 is positioned forwardly with respect to the flange 7 of the base member 6 and provides an abutment for the slip-on front 1. The slip-on from: l is formed with an opening for the purpose of straddling the casting l l forwardly of the flange 7 and surrounding such opening! is a flange 27 which abuts against the flange, shoulder or abutment '26 and the latter provides means for positioning the slip on front, as well as to prevent it shifting for wardly with respect to the casting i l. The slip-on front 4 seats on top of the casting 14. and abuts against the sides thereof. The slip-on front l at the sides thereof is formed with rearwardly extending inclined portions 28, which abut the flange 7 and have their lower ends notched as at .29 for the purpose of overlapping upstanding lugs 00 termed on the base member 6. and said lugs 29 act to position the slip-on front land further act to prevent the bottom of said slip-on front 1, at the sides thereof, from shifting forwardly and rmu'wardly with respect to the casting lat.

Integral with and arranged Within the casing 14,- at the upper portion thereof and directly below the inner shell 3 is a grate comprising a body portion 31 in which journaled oscillatory grate bars 232, 3 51-1; and 35 and each of which is provided with spaced projections 36 of any suitable eontour. The rate bars at their forward 811th; project a siibstantial distance from the body portion 31 and are mounted in, as well as extending forwardly from, a hanger 37, which is supported from the bridge piece 1.? as indicated at 38. The hanger 37 is formed with notches at the ends thereof through which extend holdfast devices provided by bolts 38 for supporting the hanger from the bridge piece 15. The holdfastdevices extendthrough the bridge piece, see Figure 3. The grate bars 33, 34 project a greater distance forwardly of the hanger 37 than the bars 32 and 35. The body portion 81 is provided with spaced projections 39 which oppose the projections 36 on the grate bars 32, 35.

Forwardly of the hanger 37, the grate bars 32, 33, 3d and 35 have secured thereto gears 40, 11, 42 and 43 respectively. The gear dO meshes with the gear- -11. The gear 42 meshes with the gear 43, and they are offset with respect to gears 40, a1. The grate bar 33, forwardly of the gear 41, has fixed thereto a collar 4L4 provided with an L-shaped crank arm 45 and the grate bar 34:, forwardly of the gear 42, is provided with. a removable collar 46 formed with an L- shaped crank arm 47. The horizontal portion of each crank arm has its inner end conencted to the collar whereby the uplit) standing portion of the crank arm will be offset with respect to the collar. Positioned rearwardly of the upstanding portions of the crank arms, as well as being pivotally connected therewith as at 48, is a connecting bar 49, which is disposed at right angles to the grate bars and extends through an opening 50 formed in the side walls 19 of the ash pit near the top of the latter. The connecting bar 49 projects a substantial di tance from the wall 19 and is detachably connected, at its outer end, as at 51, to an operating lever 52 therefor. The lever 52 is pivotall; supported at its lower end, as at 53 and is provided at its upper end with a handle 54 which is offset with respect to the pivot 51, the latter forming the connection between the outer end of the connecting bar 49 and the lever 52. The pivot 51 is positioned between the transverse median of the lever 52 and the upper end thereof.

When the lever 52 is oscillated, the connecting bar 49 is reciprocated, and the crank arms will impart an oscillatory movement to the grate bars 33, 34 carrying the cog gears 41, 42 therewith and which in turn will oscillate the cog gears 40, 43 imparting a like motion to the grate bars 32, 35. During the oscillation of the grate bars the grate bars 32, 35 will move in an opposite direction with respect to the direction of movement of the grate bars 33, 34, under such conditions the grate surface is agitated and the ashes allowed to fall into the ash pit.

The forward end of each of the grate bars 33, 34 are of triangular contour, as indicated at 55, for the reception of a crank handle for the purpose of oscillatin the grate bars from the front of the asi pit when the connecting bar 49 is disconnected from the lever 42 or when one desires to oscillate the grate bars in lieu of employing the lever 52. The crank handle, not shown is inserted through one of the openings 24 formed in the door body of the door of the ash pit.

That I claim is:

In a furnace. means to provide a forwardly extending ash pit, a plurality of spaced pairs of intermeshing gears arranged in said means, each pair for connection with and for operating a pair of grate bars in opposite directions, a shiftable crank arm within said means for each pair, of gears, a connecting bar pivotally attached to said arms for simultaneously operating them,

said bar extending through and projecting outwardly from one side of said means, and an upstanding oscillatory lever pivotally connected at its lower end and further pivotally connected intermediate its ends to the outer end of said bar for the purpose of reciprocating it to provide for the shifting of said crank arm simultaneously.

In testimony whereof, I afiix my signature hereto.

JOHN WILLIAM WESTWICK, sR. 

